/Engine/Source/Runtime/GeometryCore/Public/VectorUtil.h
true if triangle V1,V2,V3 is obtuse
namespace UE { namespace Geometry { namespace VectorUtil { template<typename RealType> bool UE::Geometry::VectorUtil::IsObtuse ( const [TVector](API\Runtime\Core\Math\TVector)< RealType > & V1, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & V2, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & V3 ) } } }